diff --git a/src/App.tsx b/src/App.tsx
index fc378bd..a7bd089 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -89,7 +89,7 @@ const App = () => {
 
   useEffect(() => {
     initGA();
-    if (parsedAuth.accessToken) checkSession();
+    if (parsedAuth && parsedAuth.accessToken) checkSession();
   }, []);
 
   return (
diff --git a/src/components/header/MainHeader.tsx b/src/components/header/MainHeader.tsx
index 8e734f0..b5fa4e2 100644
--- a/src/components/header/MainHeader.tsx
+++ b/src/components/header/MainHeader.tsx
@@ -11,7 +11,7 @@ const MainHeader = ({ isLoggedIn }: { isLoggedIn: boolean }) => {
   };
 
   return (
-    <header className="flex h-[56px] w-full items-center justify-between bg-white px-5">
+    <header className="flex h-[56px] w-full items-center justify-between bg-white pl-5">
       <Link to="/" className="flex items-center">
         <img
           src="/public/icon/mbtipslogo.svg"
diff --git a/src/pages/Chat.tsx b/src/pages/Chat.tsx
index 8d5bd3c..08d8c68 100644
--- a/src/pages/Chat.tsx
+++ b/src/pages/Chat.tsx
@@ -136,7 +136,7 @@ const Chat = () => {
 
   return (
     <div className="flex h-screen w-[360px] flex-col bg-white md:w-[375px] lg:w-[500px]">
-      <Header title={chatTitle} />
+      <Header title={chatTitle} showShareIcon={false} />
 
       <div className="flex-1 space-y-4 overflow-y-auto px-[20px] pt-6">
         <IntroGuide />
diff --git a/src/store/useMbtiTestState.ts b/src/store/useMbtiTestState.ts
index ed161bd..cc614fc 100644
--- a/src/store/useMbtiTestState.ts
+++ b/src/store/useMbtiTestState.ts
@@ -3,22 +3,114 @@ import { create } from "zustand";
 type PageNumber = 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12;
 
 interface MbtiTestState {
-    currentPage: PageNumber;
-    currentMbti: string;
-    mbtiLog: Record<string, number>;
-    setNextStep: () => void;
-    setPreviousStep: () => void;
-    setMbtiLog: (mbti: string) => void;
-    getMbtiByLog: () => void;
-    validatePrevStepisComplete: (order: PageNumber) => boolean;
-    setPageComplete: (step: PageNumber) => void;
-    retry: () => void;
+  currentPage: PageNumber;
+  currentMbti: string;
+  mbtiLog: Record<string, number>;
+  setNextStep: () => void;
+  setPreviousStep: () => void;
+  setMbtiLog: (mbti: string) => void;
+  getMbtiByLog: () => void;
+  validatePrevStepisComplete: (order: PageNumber) => boolean;
+  setPageComplete: (step: PageNumber) => void;
+  retry: () => void;
 }
 
 const useMbtiTestState = create<MbtiTestState>((set, get) => ({
-    currentPage: 1,
-    currentMbti : "",
-    mbtiLog: {
+  currentPage: 1,
+  currentMbti: "",
+  mbtiLog: {
+    E: 0,
+    I: 0,
+    N: 0,
+    S: 0,
+    F: 0,
+    T: 0,
+    J: 0,
+    P: 0
+  },
+  setNextStep: () => {
+    const currentPage = get().currentPage;
+    const setPageComplete = get().setPageComplete;
+
+    setPageComplete(currentPage); // 현재 페이지를 완료로 설정
+
+    // 마지막 페이지라면 결과 페이지로 이동
+    if (currentPage === 12) {
+      get().getMbtiByLog();
+      if (get().currentMbti !== "") window.location.href = "/mbti-test-result";
+      else console.error("mbti가 비어있습니다.");
+    } else {
+      // 그렇지 않다면 페이지를 증가시킴
+      set((state) => ({
+        currentPage: (state.currentPage + 1) as PageNumber
+      }));
+    }
+  },
+  setPreviousStep: () => {
+    const currentPage = get().currentPage;
+    if (currentPage > 1) {
+      // 페이지가 1보다 클 때만 감소
+      set((state) => ({
+        currentPage: (state.currentPage - 1) as PageNumber
+      }));
+    }
+  },
+  setMbtiLog: (mbti: string) => {
+    set((state) => ({
+      mbtiLog: {
+        ...state.mbtiLog,
+        [mbti]: state.mbtiLog[mbti] + 1
+      }
+    }));
+  },
+  getMbtiByLog: () => {
+    let mbti = "";
+    const mbtiLog = get().mbtiLog;
+    if (mbtiLog.E > mbtiLog.I) mbti += "E";
+    else mbti += "I";
+    if (mbtiLog.N > mbtiLog.S) mbti += "N";
+    else mbti += "S";
+    if (mbtiLog.F > mbtiLog.T) mbti += "F";
+    else mbti += "T";
+    if (mbtiLog.J > mbtiLog.P) mbti += "J";
+    else mbti += "P";
+    set(() => ({
+      currentMbti: mbti
+    }));
+    localStorage.setItem("mbti-test-mbti", mbti);
+  },
+  validatePrevStepisComplete: (order: PageNumber) => {
+    if (order <= 1) {
+      return false;
+    }
+    return !!get().pageIsCompleted[(order - 1) as PageNumber];
+  },
+  setPageComplete: (step: PageNumber) => {
+    set((state) => ({
+      pageIsCompleted: {
+        ...state.pageIsCompleted,
+        [step]: true
+      }
+    }));
+  },
+  retry: () => {
+    set(() => ({
+      currentPage: 1,
+      pageIsCompleted: {
+        1: false,
+        2: false,
+        3: false,
+        4: false,
+        5: false,
+        6: false,
+        7: false,
+        8: false,
+        9: false,
+        10: false,
+        11: false,
+        12: false
+      },
+      log: {
         E: 0,
         I: 0,
         N: 0,
@@ -26,98 +118,10 @@ const useMbtiTestState = create<MbtiTestState>((set, get) => ({
         F: 0,
         T: 0,
         J: 0,
-        P: 0,
-    },
-    setNextStep: () => {
-        const currentPage = get().currentPage; 
-        const setPageComplete = get().setPageComplete;
-
-        setPageComplete(currentPage); // 현재 페이지를 완료로 설정
-        
-        // 마지막 페이지라면 결과 페이지로 이동
-        if (currentPage === 12) {
-            get().getMbtiByLog();
-            if (get().currentMbti !== "") window.location.href="/mbti-test-result";
-            else console.error("mbti가 비어있습니다.");
-        } else {
-            // 그렇지 않다면 페이지를 증가시킴
-            set((state) => ({
-                currentPage: (state.currentPage + 1) as PageNumber,
-            }));
-        }
-        
-    },
-    setPreviousStep: () => {
-        const currentPage = get().currentPage; 
-        if (currentPage > 1) { // 페이지가 1보다 클 때만 감소
-            set((state) => ({
-                currentPage: (state.currentPage - 1) as PageNumber,
-            }));
-        }
-    },
-    setMbtiLog : (mbti : string) => {
-      set((state) => ({
-        mbtiLog: {
-          ...state.mbtiLog,
-          [mbti]: state.mbtiLog[mbti] + 1,
-        },
-      }));
-    },
-    getMbtiByLog:()=>{
-        let mbti ="";
-        const mbtiLog = get().mbtiLog;
-        if(mbtiLog.E>mbtiLog.I) mbti += "E"; else mbti += "I";
-        if(mbtiLog.N>mbtiLog.S) mbti += "N"; else mbti += "S";
-        if(mbtiLog.F>mbtiLog.T) mbti += "F"; else mbti += "T";
-        if(mbtiLog.J>mbtiLog.P) mbti += "J"; else mbti += "P";
-        set(() => ({
-            currentMbti: mbti,
-        }));
-        localStorage.setItem("mbti-test-mbti", mbti);
-    },
-    validatePrevStepisComplete: (order: PageNumber) => {
-        if (order <= 1) {
-            return false;
-        }
-        return !!get().pageIsCompleted[order - 1 as PageNumber];
-    },
-    setPageComplete: (step: PageNumber) => {
-        set((state) => ({
-            pageIsCompleted: {
-                ...state.pageIsCompleted,
-                [step]: true,
-            },
-        }));
-    },
-    retry: ()=> {
-        set(() => ({
-            currentPage: 1,
-            pageIsCompleted: {
-                1: false,
-                2: false,
-                3: false,
-                4: false,
-                5: false,
-                6: false,
-                7: false,
-                8: false,
-                9: false,
-                10: false,
-                11: false,
-                12: false,
-            },
-            log: {
-                E: 0,
-                I: 0,
-                N: 0,
-                S: 0,
-                F: 0,
-                T: 0,
-                J: 0,
-                P: 0,
-            },
-        }));
-    },
+        P: 0
+      }
+    }));
+  }
 }));
 
-export default useMbtiTestState;
\ No newline at end of file
+export default useMbtiTestState;